X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=aft.c;h=7d3a6e0d98a01e40974f22285e9be2d9fac01b46;hp=4e2e1f8dbe2af69df7f5927a11687a236975c5a3;hb=0d90aa75852c4e76d8d00659d48ba4baf32deae2;hpb=234647bb5139513bdf36c1afec46f5c43ba27adc

diff --git a/aft.c b/aft.c
index 4e2e1f8d..7d3a6e0d 100644
--- a/aft.c
+++ b/aft.c
@@ -409,9 +409,10 @@ static void load_afhi(const char *buf, struct afh_info *afhi)
 	afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
 }
 
+/* Only used for saving the chunk table, but not for loading. */
 static unsigned sizeof_chunk_table(struct afh_info *afhi)
 {
-	if (!afhi)
+	if (!afhi || !afhi->chunk_table)
 		return 0;
 	return 4 * (afhi->chunks_total + 1);
 }
@@ -420,6 +421,8 @@ static void save_chunk_table(struct afh_info *afhi, char *buf)
 {
 	uint32_t n;
 
+	if (!afhi->chunk_table)
+		return;
 	for (n = 0; n <= afhi->chunks_total; n++)
 		write_u32(buf + 4 * n, afhi->chunk_table[n]);
 }
@@ -427,8 +430,14 @@ static void save_chunk_table(struct afh_info *afhi, char *buf)
 static void load_chunk_table(struct afh_info *afhi, const struct osl_object *ct)
 {
 	int i;
+	size_t sz;
 
-	afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
+	if (!ct->data || ct->size < 4) {
+		afhi->chunk_table = NULL;
+		return;
+	}
+	sz  = PARA_MIN(((size_t)afhi->chunks_total + 1) * 4, ct->size) + 1;
+	afhi->chunk_table = para_malloc(sz);
 	for (i = 0; i <= afhi->chunks_total && i * 4 + 3 < ct->size; i++)
 		afhi->chunk_table[i] = read_u32(ct->data + 4 * i);
 }
@@ -1061,8 +1070,15 @@ again:
 	d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
 	ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
 		AFTCOL_CHUNKS, &chunk_table_obj));
-	if (ret < 0)
-		return ret;
+	if (ret < 0) {
+		if (!afh_supports_dynamic_chunks(d->afsi.audio_format_id))
+			return ret;
+		PARA_INFO_LOG("no chunk table for %s\n", d->path);
+		chunk_table_obj.data = NULL;
+		chunk_table_obj.size = 0;
+	} else {
+		PARA_INFO_LOG("chunk table: %zu bytes\n", chunk_table_obj.size);
+	}
 	ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
 	if (ret < 0)
 		goto out;
@@ -1092,7 +1108,8 @@ again:
 	ret = save_afd(afd);
 out:
 	free(afd->afhi.chunk_table);
-	osl_close_disk_object(&chunk_table_obj);
+	if (chunk_table_obj.data)
+		osl_close_disk_object(&chunk_table_obj);
 	if (ret < 0) {
 		PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
 		ret = score_delete(current_aft_row);
@@ -1743,6 +1760,7 @@ static int com_add_callback(struct afs_callback_arg *aca)
 			&objs[AFTCOL_AFHI]));
 		if (ret < 0)
 			goto out;
+		/* truncate the file to size zero if there is no chunk table */
 		ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
 			&objs[AFTCOL_CHUNKS]));
 		if (ret < 0)